Finding the Third Proportional to 21,340 and 30,030

Step by Step Solution

1. Step 1: Write the proportion equation
   21,340 : 30,030 = 30,030 : x
2. Step 2: Convert to fraction form
   21,340/30,030 = 30,030/x
3. Step 3: Cross multiply
   21,340x = 30,030 × 30,030
4. Step 4: Simplify right side
   21,340x = 901,800,900
5. Step 5: Solve for x
   x = 901,800,900/21,340
6. Step 6: Final answer
   x = 42,258.71